Greetings, I came across a company that is using Russian cold war technology to sythesize diamonds in their factory. The machines they bought from the Russians look like 5ft. high, 3 feet diameter metal cylinders. They approximate the temperature and pressure that the Earth uses to create diamonds from raw carbon. Here is a link to the company's website http://www.gemesis.com/ I'd be curious to know if anyone here has access to more information on their technology, or perhaps a white paper on their processes.